How do I make a Sit Pose Animation Script work?

-- Made the animation and all, and inserted it and it won't work when I do it? Please help! I'm using a local script, and that's it.

local Player = game.Players.LocalPlayer

local Character = Player.Character or script.Parent

local Humanoid = Character.Humanoid

local UserInputService = game:GetService("UserInputService")



local AnimationId = 'rbxassetid://3125351974'



local Key = 'f'



UserInputService.InputBegan:Connect (function(Input, IsTyping)

if IsTyping then return end

if Input.KeyCode == Enum.KeyCode(Key) then

local Animation = Instance.new("Animation")

Animation.AnimationId = AnimationId

local LoadAnimation = Humanoid:LoadAnimation(Animation)

LoadAnimation:Play()

wait(1)

Animation:Destroy()

end

end)